Processing polyethylenes
    6.
    发明授权
    Processing polyethylenes 有权
    加工聚乙烯

    公开(公告)号:US06620895B1

    公开(公告)日:2003-09-16

    申请号:US09675028

    申请日:2000-09-28

    IPC分类号: C08F21016

    摘要: Polyethylenes made from ethylene and a series of &agr;-olefins using a catalyst that copolymerizes ethylene and &agr;-olefins usually have excellent melt processing characteristics, especially in uses where high zero shear viscosity and low high shear viscosity are desirable. These polyethylenes are preferably made by forming the &agr;-olefins in situ from ethylene during the polymerization process. The polyethylenes are especially useful in blow molding, extrusion or extruded blown film processes.

    摘要翻译: 使用乙烯和α-烯烃共聚合的催化剂由乙烯和一系列α-烯烃制成的聚乙烯通常具有优异的熔体加工特性,特别是在需要高零剪切粘度和低剪切粘度的应用中。 这些聚乙烯优选通过在聚合过程中由乙烯原位形成α-烯烃来制备。 聚乙烯特别适用于吹塑,挤出或挤出吹塑薄膜工艺。